CN110206614A - Turbocharger, engine and vehicle - Google Patents

Abstract

This disclosure relates to a kind of turbocharger, engine and vehicle, wherein, turbocharger includes compressor, intermediate and turbine, pass through rotating shaft transmission between the pinch roller of the compressor and the turbine of the turbine, the shaft passes through the intermediate, the intermediate is offered for the opening with crankcase ventilation outlet, the whizzer being set in the shaft is equipped in the intermediate, after gas mixture from crankcase ventilation outlet is via the whizzer, gas flows into the compressor.The whizzer that will carry out Oil-gas Separation is integrated in turbocharger, saves the arrangement space of components.Shaft rotates turbocharger at work, and whizzer also rotates with it, and the oil in gas mixture moves radially, and gas is generally axially manoeuvred into compressor.The exhaust gas that engine generates can drive turbine high-speed rotation, and the whizzer of same high-speed rotation has good separative efficiency.

Description

Turbocharger, engine and vehicle

Technical field

This disclosure relates to vehicle component field, and in particular, to a kind of turbocharger, engine and vehicle.

Background technique

When the engine is working, partial high pressure combustion mixture and burning waste gas are when high speed piston is moved back and forth from piston Gap is scurried into crankcase, to guarantee that clean environment, this portion gas of laws and regulations requirement need to be directed into combustion chamber again.In correlation In technology, crankcase ventilation system is set, the gas mixture from crankcase ventilation outlet is negative by gs-oil separator, then warp The negative pressure ventilation of potential source forms outlet-Oil-gas Separation-negative pressure ventilation process, finally introduces gas into the combustion of engine It burns in room.Negative pressure source in big load is generally provided by booster front end, and booster and gs-oil separator are coupled, and is needed Consider connection relationship, the factors such as assembly precision, and especially separating effect is limited.

Summary of the invention

One purpose of the disclosure is to provide a kind of turbocharger, which can integrate gs-oil separator, Structure is simple and has good oil gas separation.

Another object of the present disclosure is to provide a kind of engine, which has the offer of disclosure first aspect Turbocharger.

A further object of the present disclosure is to provide a kind of vehicle, the hair which has disclosure the second aspect to provide Motivation.

To achieve the goals above, the disclosure provides a kind of turbocharger, which is characterized in that including turbine and calms the anger Device, the turbine of the turbine are connected with shaft, and the compressing device has the cavity passed through by the shaft, the cavity The opening with crankcase ventilation outlet is offered, is equipped with the whizzer being set in the shaft in the cavity, After gas mixture from crankcase ventilation outlet is via the whizzer, gas and oil do not pass through respective It is flowed out from the compressing device in channel.

Optionally, guide plate is equipped between the opening and the whizzer.

Optionally, the compressing device includes: compressor, between the pinch roller of the compressor and the turbine of the turbine Pass through the rotating shaft transmission；And intermediate, setting pass through between the compressor and the turbine, and by the shaft, The cavity is formed in the intermediate, and the gas mixture from crankcase ventilation outlet is via the centrifuge separation After device, gas flows into the compressor, and oil is flowed out via the circumferential surface of the intermediate.

Optionally, one end close to the compressor of the intermediate, the opening is arranged in the whizzer It is provided with one end close to the turbine of the intermediate.

Optionally, oil return hole being offered on the inner peripheral surface of the intermediate, outer peripheral surface offers oil export, and each described time Oilhole is connected to the oil export respectively.

Optionally, oil return pond is equipped between the oil return hole and the oil export, from crankcase ventilation outlet Gas mixture is after the whizzer, and oil is successively via the oil return hole, the oil return pond and the oil export Outflow.

Optionally, the compressor includes the pressure shell for accommodating the pinch roller, the end close to the intermediate of the pressure shell Offer the first oil leab in face, offer the second axial oil leab in the shaft, first oil leab and The second oil leab connection.

Optionally, the turbine includes the spiral case for accommodating the turbine, the end close to the intermediate of the spiral case Cooling water flow conduits are offered in face.

Optionally, first oil leab includes the outer oil duct being sequentially communicated, intermediate oil duct and internal oil channel, described outer Oil duct radially extends from outside to inside, and the intermediate oil duct is formed as annular, and the internal oil channel includes circumferentially spaced setting A plurality of, the intermediate oil duct is connected to by every internal oil channel with second oil leab.

Optionally, the whizzer includes stacked and there are the Multi-layer rotary top in gap, and the turntable, which offers, to be used for The first through hole being set in the shaft, and it is close in the second through-hole of the first through hole.

Optionally, second through-hole includes multiple, and around the first through hole arranged for interval.

According to the second aspect of the disclosure, a kind of engine, including turbocharger are provided, the turbocharger is According to above-described turbocharger.

In terms of according to the third of the disclosure, a kind of vehicle, including engine are provided, the engine is according to the above institute The engine stated.

Through the above technical solutions, the whizzer that will carry out Oil-gas Separation is integrated in turbocharger, section The arrangement space of components is saved, structure is simple.Since shaft rotates turbocharger at work, whizzer is also therewith Rotation, in this course, the biggish oil of weight moves radially in gas mixture, i.e., mobile towards the inner peripheral surface of cavity, And the lesser gas of weight can be moved generally axially.The exhaust gas that engine generates can drive turbine high-speed rotation, equally The whizzer of high-speed rotation has good separative efficiency.The gas and script entered in compressing device enters turbine Mixing in booster to pressurized air, can also improve the intake efficiency of engine.

Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.

Detailed description of the invention

Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:

Fig. 1 is the structural schematic diagram of turbocharger in accordance with one embodiment of the present disclosure；

Fig. 2 is the flow graph of fluid in embodiment shown in fig. 1；

Fig. 3 is the schematic diagram of whizzer in turbocharger in accordance with one embodiment of the present disclosure.

Description of symbols

10 compressor, 11 pinch roller

12 pressure shell, 121 first oil leab

20 intermediates 21 opening

22 oil return hole, 23 oil export

24 oil return pond, 30 turbine

31 turbine, 32 spiral case

321 cooling water flow conduits, 40 shaft

41 second oil leab, 50 whizzer

51 first through hole, 52 second through-hole

The outer oil duct of 60 guide plate 1211

1212 intermediate 1213 internal oil channels of oil duct

Specific embodiment

It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.

In the disclosure, in the absence of explanation to the contrary, noun of locality "inner", the "outside" used is for corresponding zero For profile of part itself, term " first " used in the disclosure, " second " are to distinguish an element and another Element does not have succession and importance.In addition, same appended drawing reference is in different attached drawings when following explanation is related to attached drawing It is middle to indicate identical element.

Turbocharger includes turbine and can be to the compressing device of gas boosting, referring to Figures 1 and 2, turbine 30 It is connected to the exhaust passage of engine, the exhaust gas-driven turbine 31 that engine generates rotates, and then waste gas stream L3 is discharged into exhaust pipe In road.Turbine 31 drives compressing device by shaft 40, can form air after pressurization to the gas boosting for entering compressing device L2 is flowed, is entered in the inlet manifold of engine, is supplied for engine.It is passed through as shown in Figure 1, compressing device has by shaft 40 Cavity, cavity offers the opening 21 with crankcase ventilation outlet, the centrifugation being set in shaft 40 is equipped in cavity Separator 50, after the gas mixture from crankcase ventilation outlet is via whizzer 50, gas and oil do not pass through respectively From channel from compressing device flow out.In this way, the whizzer 50 that will carry out Oil-gas Separation is integrated in turbocharger In, the arrangement space of components is saved, structure is simple.Since shaft 40 rotates turbocharger at work, centrifuge separation Device 50 also rotates with it, and in this course, the biggish oil of weight moves radially in gas mixture, i.e., towards in cavity Circumferential surface is mobile, and the lesser gas of weight can be moved generally axially.The exhaust gas that engine generates can drive turbine 31 high The whizzer 50 of speed rotation, same high-speed rotation has good separative efficiency.Enter gas in compressing device with Originally mixing in turbocharger to pressurized air is entered, the intake efficiency of engine can also be improved.

Further, as shown in Figure 1, guide plate 60, guide plate 60 can be equipped between opening 21 and whizzer 50 One end is connected at opening 21, and the intermediate position of the other end towards the end of whizzer 50 extends, so that most of oil gas Mixture can be sufficiently separated.Such as in conjunction with embodiment disclosed below and Fig. 3, the plate face of one end of guide plate 60 is directed at opening 21, the plate face of the other end is directed at the second through-hole 52 on whizzer 50.

The disclosure is described further so that compressing device includes the embodiment of compressor 10 and intermediate 20 as an example, but not Exclude the compressing device of other forms.Specifically, the pinch roller 11 of compressor 10 is used to increase the gas entered in compressor 10 Pressure, pinch roller 11 are driven by shaft 40 and are rotated.Intermediate 20 is between compressor 10 and turbine 30 and has cavity, the sky Chamber is the cavity of above-mentioned compressing device, and shaft 40 passes through intermediate 20, and both ends are connected to turbine 31 and pinch roller 11 On, above-mentioned opening 21 is provided on intermediate 20.Gas mixture from crankcase ventilation outlet is via whizzer After 50, gas flows into compressor 10, and oil is flowed out via the circumferential surface of intermediate 20.Specifically, weight is biggish in gas mixture Oil moves radially, i.e., the inner peripheral surface of body 20 is mobile towards the middle, and the lesser gas of weight can be moved generally axially, into Enter into compressor 10.

As shown in Figure 1, one end close to compressor 10 of intermediate 20 is arranged in whizzer 50, opening 21 is provided with One end close to turbine 30 of intermediate 20.In this way, opening 21 can be to avoid not mixed by isolated oil gas far from compressor 10 Object is closed to enter directly into compressor 10, and after whizzer 50, it can be rapidly introduced into and calm the anger by isolated gas In machine 10.

As shown in Figure 1, offering oil return hole 22 on the inner peripheral surface of intermediate 20, outer peripheral surface offers oil export 23, each Oil return hole 22 is connected to oil export 23 respectively, and the oil after being centrifuged device separation can be flowed via oil return hole 22, oil export 23 To the outside of turbocharger, flow back into engine lubrication system.In conclusion referring to Fig. 2, the oil of 20 opening of intermediate Gas mixture fluid L1 be divided into after whizzer 50 recovery air-flow L11 and recycling machine oil stream L12, recovery air-flow L11 into Enter into compressor 10, finally supplied for engine, recycling machine oil stream L12 is flowed out from the circumferential surface of intermediate 20, is entered eventually into In engine lubrication system.

Further, as shown in Figure 1, being equipped with oil return pond 24 between oil return hole 22 and oil export 23, crankcase ventilation is come from The gas mixture of outlet enter opening 21 in, after whizzer 50, oil via oil return hole 22, oil return pond 24 and Oil export 23 flows out.Oil return pond 24 can be used as a part of the lubricant passage way of turbocharger, as depicted in figs. 1 and 2, oil return Hole 22 is arranged in the corresponding region of whizzer 50, and oil return pond 24 is axially extending in the inner peripheral surface of intermediate 20, oil return pond 24 The machine oil in the second following oil leabs 41 can also be received.In addition, oil return hole 22, oil return pond 24 and oil export 23 It is separately positioned on the bottom of turbocharger, more oil can be obtained by means of gravity.

Turbocharger is additionally provided with lubricating system and water-cooling system, and as depicted in figs. 1 and 2, compressor 10 includes accommodating pressure The pressure shell 12 of wheel 11, pressure shell 12 offer the first oil leab 121 close in the end face of intermediate 20, offer in shaft 40 The second axial oil leab 41, the first oil leab 121 are connected to the second oil leab 41, and the second oil leab 41 is from shaft 40 extend to shaft and 30 coupling part of turbine with the coupling part of compressor 10, can lubricate each coupling part.Lubrication Oil circuit L4 can be connected to the lubricating system of engine, i.e., moistened using the machine oil in engine lubrication system to turbocharger It is sliding.

Further, referring to Fig.1, the first oil leab 121 may include the outer oil duct 1211 being sequentially communicated, intermediate oil duct 1212 and internal oil channel 1213, outer oil duct 1211 radially extend from outside to inside, intermediate oil duct 1212 be formed as annular, internal oil channel 1213 include a plurality of of circumferentially spaced setting, and every internal oil channel 1213 connects intermediate oil duct 1212 and the second oil leab 41 It is logical.In this way, lubricating oil after flowing into outer oil duct 1211, can be contained in the annular chamber that intermediate oil duct 1212 is formed, then The second oil leab 41 is flowed by multiple internal oil channels 1213, multiple internal oil channels 1213 can moisten pressure shell 12 in corresponding many places It is sliding.To ensure oil pressure balance, outer oil duct 1211 is relatively thick, and internal oil channel 1213 is relatively thin.

As depicted in figs. 1 and 2, turbine 30 includes the spiral case 32 for accommodating turbine 31, spiral case 32 close to intermediate 20 Cooling water flow conduits 321 are offered in end face, which whizzer 50 is isolated with turbine 30, avoids heat Amount is transmitted to the inside of intermediate 20, influences the separating effect of whizzer 50.Cooling water channel L5 can be with the water of engine Cooling system connection, i.e., it is cooling to turbocharger using the cooling water in engine-cooling system.

The disclosure without limitation, as long as can rotate with shaft 40, and has the specific structure of whizzer 50 Radial oily channel and axial gas passage.Such as shown in Fig. 1 and Fig. 3, the whizzer 50 of present embodiment is wrapped Include stacked and there are the Multi-layer rotary top in gap, turntable offers the first through hole 51 for being set in shaft 40, and is close in Second through-hole 52 of first through hole 51.When whizzer 50 rotates, oil is under the action of the centrifugal force in the disk of turntable along diameter To movement.First through hole 51 is provided with the center of turntable, and the second through-hole 52 is close to the center of turntable, in this way it can be ensured that oil is not It can be entered in compressor 10 in the second through-hole 52.It should be noted that the interval between adjacent two layers turntable is smaller, To avoid the gas after separation in excessive interval play, lead to not enter the second through-hole 52.It should also be noted that, In present embodiment, each turntable structure is identical, that is, ensures 52 1 a pair of first through hole 51 and the second through-hole on each turntable Together, gas passage is formed.The thickness and the number of plies of turntable can according to actual use situation determine, when single layer turntable thickness compared with It is small, and when the whole axial dimension of whizzer 50 is larger, separating effect is preferable.In addition, when 50 revolving speed of whizzer compared with Gao Shi nearby generates negative pressure, helps to be drawn into whizzer 50 from the gas mixture of opening 21.

Further, as shown in figure 3, the second through-hole 52 includes multiple, and around 51 arranged for interval of first through hole, Duo Ge Two through-holes 52 can form multiple gas passages, improve the efficiency that the gas in gas mixture enters compressor 10.Second Through-hole 52 can be equally spaced, so that turntable stability of rotation.

According to the second aspect of the disclosure, a kind of engine is provided, which has above-mentioned turbocharger. In terms of according to the third of the disclosure, a kind of vehicle is provided, which has above-mentioned engine.Engine and vehicle have Whole beneficial effects of above-mentioned turbocharger, details are not described herein again.In addition, the turbine that engine is provided in the configuration disclosure While booster, it can also be arranged and similar gs-oil separator in the related technology.Specifically, it is exported in crankcase ventilation Level-one gs-oil separator is set, and the gas after level-one Oil-gas Separation is entered in turbocharger by opening 21, is passed through Centrifugal separator 50 carries out second level Oil-gas Separation, so as to improve the effect of Oil-gas Separation.The disclosure is to level-one Oil-gas Separation The specific structure of device without limitation, as long as connecting it effectively with turbocharger.

The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure Monotropic type, these simple variants belong to the protection scope of the disclosure.

It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the disclosure to it is various can No further explanation will be given for the combination of energy.

In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally Disclosed thought equally should be considered as disclosure disclosure of that.

Claims (10)

1. a kind of turbocharger, which is characterized in that including turbine (30) and compressing device, the turbine of the turbine (30) (31) be connected with shaft (40), the compressing device has the cavity that is passed through by the shaft (40), the cavity offer with The opening (21) of crankcase ventilation outlet, the cavity is interior to be equipped with the whizzer being set on the shaft (40) (50), after from the gas mixture that the crankcase ventilation exports via the whizzer (50), gas and oil are other It is flowed out by respective channel from the compressing device.

2. turbocharger according to claim 1, which is characterized in that opening (21) and the whizzer (50) guide plate (60) are equipped between.

3. turbocharger according to claim 1 or 2, which is characterized in that the compressing device includes:

Compressor (10), by described between the pinch roller (11) of the compressor (10) and the turbine (31) of the turbine (30) Shaft (40) transmission；With

Intermediate (20), setting pass through between the compressor (10) and the turbine (30), and by the shaft (40), The cavity is formed in the intermediate (20),

After gas mixture from crankcase ventilation outlet is via the whizzer (50), gas flows into the pressure Mechanism of qi (10), oil are flowed out via the circumferential surface of the intermediate (20).

4. turbocharger according to claim 3, which is characterized in that offered on the inner peripheral surface of the intermediate (20) Oil return hole (22), outer peripheral surface offer oil export (23), and each oil return hole (22) is connected to the oil export (23) respectively.

5. turbocharger according to claim 4, which is characterized in that the oil return hole (22) and the oil export (23) Between be equipped with oil return pond (24), from the crankcase ventilation outlet gas mixture pass through the whizzer (50) Afterwards, oil is successively flowed out via the oil return hole (22), the oil return pond (24) and the oil export (23).

6. turbocharger according to claim 3, which is characterized in that the compressor (10) includes accommodating the pinch roller (11) pressure shell (12) offers the first oil leab in the end face close to the intermediate (20) of the pressure shell (12) (121), axial the second oil leab (41) is offered in the shaft (40), first oil leab (121) and described Second oil leab (41) connection.

7. turbocharger according to claim 6, which is characterized in that first oil leab (121) includes successively The outer oil duct (1211) of connection, intermediate oil duct (1212) and internal oil channel (1213), the outer oil duct (1211) edge from outside to inside It radially extends, the intermediate oil duct (1212) is formed as annular, and the internal oil channel (1213) includes the more of circumferentially spaced setting The intermediate oil duct (1212) is connected to by item, every internal oil channel (1213) with second oil leab (41).

8. the turbocharger described in any one of according to claim 1, which is characterized in that the whizzer (50) includes Stacked and there are the Multi-layer rotary top in gap, the turntable offers the first through hole for being set on the shaft (40) (51), and it is close in the second through-hole (52) of the first through hole (51).

9. a kind of engine, including turbocharger, which is characterized in that the turbocharger is according in claim 1-8 Described in any item turbocharger.

10. a kind of vehicle, including engine, which is characterized in that the engine is according to engine as claimed in claim 9.